Smart Algo - HA + Renko Trend Signals

indicator("Smart Algo - HA + Renko Trend Signals", overlay=true, max_labels_count=500, max_boxes_count=500)

grp_trend = "═══ TREND SETTINGS ═══"
adx_len = input.int(14, "ADX Length", group=grp_trend)
adx_threshold = input.int(25, "ADX Threshold (Trend Strength)", group=grp_trend)
ema_fast = input.int(9, "Fast EMA", group=grp_trend)
ema_mid = input.int(21, "Mid EMA", group=grp_trend)
ema_slow = input.int(50, "Slow EMA", group=grp_trend)

grp_renko = "═══ RENKO SETTINGS ═══"
renko_method = input.string("ATR", "Brick Size Method", options=["ATR", "Fixed"], group=grp_renko)
renko_atr_len = input.int(14, "Renko ATR Length", group=grp_renko)
renko_fixed = input.float(50.0, "Fixed Brick Size", group=grp_renko)

grp_ha = "═══ HEIKIN ASHI FILTER ═══"
ha_filter = input.bool(true, "Use HA Trend Filter", group=grp_ha)
ha_body_min = input.float(0.5, "Min HA Body % for Strong Candle", minval=0.1, maxval=1.0, group=grp_ha)

grp_rsi = "═══ RSI MOMENTUM ═══"
rsi_len = input.int(14, "RSI Length", group=grp_rsi)
rsi_ob = input.int(70, "RSI Overbought", group=grp_rsi)
rsi_os = input.int(30, "RSI Oversold", group=grp_rsi)

grp_vol = "═══ VOLUME FILTER ═══"
use_vol = input.bool(true, "Use Volume Filter", group=grp_vol)
vol_mult = input.float(1.5, "Volume Multiplier", group=grp_vol)

grp_sig = "═══ SIGNALS ═══"
show_signals = input.bool(true, "Show Signals", group=grp_sig)
show_trend_bg = input.bool(true, "Show Trend Background", group=grp_sig)
show_renko = input.bool(true, "Show Renko Bricks", group=grp_sig)

var float ha_open = na
var float ha_close = na
var float ha_high = na
var float ha_low = na

ha_close_calc = (open + high + low + close) / 4.0
ha_open_calc = na(ha_open[1]) ? (open + close) / 2.0 : (nz(ha_open[1]) + nz(ha_close[1])) / 2.0
ha_high_calc = math.max(high, math.max(ha_open_calc, ha_close_calc))
ha_low_calc = math.min(low, math.min(ha_open_calc, ha_close_calc))

ha_open := ha_open_calc
ha_close := ha_close_calc
ha_high := ha_high_calc
ha_low := ha_low_calc

ha_bullish = ha_close > ha_open
ha_bearish = ha_close < ha_open
ha_body_size = math.abs(ha_close - ha_open)
ha_range = ha_high - ha_low
ha_body_pct = ha_range > 0 ? ha_body_size / ha_range : 0.0
ha_strong = ha_body_pct >= ha_body_min

renko_atr = ta.atr(renko_atr_len)
brick_size = renko_method == "ATR" ? renko_atr : renko_fixed

var float renko_high = na
var float renko_low = na
var int renko_dir = 0  // 1 = bullish, -1 = bearish

if na(renko_high)
    renko_high := close
    renko_low := close - brick_size
    renko_dir := 1
else
    if close >= renko_high + brick_size
        bricks_up = math.floor((close - renko_high) / brick_size)
        renko_high += bricks_up * brick_size
        renko_low := renko_high - brick_size
        renko_dir := 1
    else if close <= renko_low - brick_size
        bricks_down = math.floor((renko_low - close) / brick_size)
        renko_low -= bricks_down * brick_size
        renko_high := renko_low + brick_size
        renko_dir := -1

renko_bullish = renko_dir == 1
renko_bearish = renko_dir == -1

ema_f = ta.ema(close, ema_fast)
ema_m = ta.ema(close, ema_mid)
ema_s = ta.ema(close, ema_slow)

[di_plus, di_minus, adx] = ta.dmi(adx_len, adx_len)

strong_uptrend = ema_f > ema_m and ema_m > ema_s and di_plus > di_minus and adx > adx_threshold
strong_downtrend = ema_f < ema_m and ema_m < ema_s and di_minus > di_plus and adx > adx_threshold
sideways = adx < adx_threshold

rsi = ta.rsi(close, rsi_len)
rsi_bullish = rsi > 50 and rsi < rsi_ob
rsi_bearish = rsi < 50 and rsi > rsi_os

vol_avg = ta.sma(volume, 20)
vol_ok = use_vol ? volume > vol_avg * vol_mult : true

bull_score = 0.0
bear_score = 0.0

if ema_f > ema_m
    bull_score += 1.0
if ema_m > ema_s
    bull_score += 1.0
if ema_f > ema_s
    bull_score += 1.0

if ema_f < ema_m
    bear_score += 1.0
if ema_m < ema_s
    bear_score += 1.0
if ema_f < ema_s
    bear_score += 1.0

if adx > adx_threshold
    if di_plus > di_minus
        bull_score += 2.0
    else
        bear_score += 2.0

if ha_filter
    if ha_bullish and ha_strong
        bull_score += 2.0
    if ha_bearish and ha_strong
        bear_score += 2.0

if renko_bullish
    bull_score += 2.0
if renko_bearish
    bear_score += 2.0

if rsi_bullish
    bull_score += 1.0
if rsi_bearish

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